Why cant you see your menu screens on visual boy advance Pokemon emerald and how do you get them back Im pressing enter and hear the menu opening but you cant see it

The great thing about the visual boy advance is that it creates a save file which contains all of your progress. I believe that your version of Pokemon Emerald is damaged or is missing parts of the code, I think that if you were to download another version of the game from http://www.coolrom.com/ and put the save file and the downloaded game into the same folder and open it.
Hope that saves your problem.